The digital certificates can be used for security services required at storage or transmission of the electronic data with or without security classification; for the digital signing of files, messages and electronic forms; for the identification of persons and electronic components, which are part of the communication and information system, such as servers, routers, firewalls and directories.

SIMoD-PKI Certificate Policy defines practices followed by certificate authorities, general requirements regarding digital certificates, level of trust for digital certificates, minimal technical characteristics and security levels for the infrastructure of the certificate authorities, obligations and responsibilities of the certificates authorities and obligations of subscribers and relying parties.